The Sunnyside Sharks weathered their first real challenge of the season last night, claiming a hard fought 462-359 victory over the Prosser Piranhas.

Tuesday night's victory improved Sunnyside's record to 3-0 in Mid-Valley Summer Swim League action. For the Sharks, it was the team's third straight meet swimming in their home pool.

Last night marked the season debut of the three Broersma sisters, who paced the Sharks with a combined 14 victories.

Older sister Kaitlyn Broersma won three of the four 50-meter sprints in the girls 18&U division. She also came away as the top swimmer in the more grueling 200-meter individual medley, besting the runner-up, Prosser's Ruttie Watkins, by 15.67 seconds. In the only race Broersma didn't win, the 50-meter butterfly, Watkins edged the Shark by just two-tenth's of a second. Broersma, too, played a part in helping the Sharks win both relay events in her age division.

Middle sister Marisa Broersma helped Sunnyside's 200-meter medley relay squad to a first place finish in the girls 14&U division. She also claimed a victory in the 50-meter breaststroke, and finished second in the 50-butterfly, backstroke and freestyle events, as well as in the 200-meter individual medley. Prosser's McKenzie Gant bested Broersma in those races.

Younger sister Brittany Broersma, a girls 12&U swimmer, came out on top in three of the four 50-meter sprints and in the 200-IM. She also swam legs on the winning medley and freestyle relay squads in her age bracket. In the only race she didn't win, Broersma finished a distant fifth in the 50-breast to teammate Madi Marquez.

Prosser's big hitters last night proved to be Deyton Cleveringa and Ty Hobbick in the boys 10&U and 12&U events, respectively. The duo swept all of their 50-meter sprints. Hobbick also won the boys 12&U 200-individual medley for the Piranhas.

Prosser also received a heady performance from boys 18&U swimmer Anthony Kim. He dealt previously unbeaten and highly regarded Joey Elerding of Sunnyside a pair of losses in the 50-meter backstroke and freestyle races. Elerding, though, remained undefeated on the season in the 50-butterfly, 50-breaststroke and 200-individual medley events.

One of Sunnyside's strongholds last night came in the girls 10&U races. The one-two punch of Lindsay Schilperoort and Kalie Bestebreur added up to victories in all seven events, as well as one runner-up finish.

Cristian Vargas also had a big night for the Sharks. Competing in the boys 14&U events, he swept to victory in all but one of the 50-meter sprints, and in the 200-IM. The one sprint Vargas didn't win, the 50-freestyle, he finished second to teammate Tim Stiteler.